In this book, a group of internationally distinguished lymphoma experts provide a comprehensive review of the most important advances in the biology, diagnosis, and therapy of T cell and NK cell malignancies. In particular, it demonstrates in detail how advances in our understanding of the tumor microenvironment and molecular biology have helped to elucidate the pathogenesis of these lymphomas, improve diagnostic and prognostic accuracy, and develop novel therapies that promise improved patient outcomes. Individual chapters are devoted to particular tumor types and subtypes, and all aspects of transplantation for patients with T cell and NK cell lymphomas are discussed. As such, the book offers a valuable resource for hematologists, oncologists, hematopathologists, and all those seeking an up-to-date overview of how new, targeted therapies are delivering better disease control and improved quality of life.